The story
- Old French · derived fromrasour
- Middle English · inherited fromrasour
- English todayrazor
From Middle English rasour, from Old French rasour, from raser (“to scrape, to shave”). More at rat. By surface analysis, raze + -or. Displaced the native Old English sċierseax (literally “shaving knife”).
Etymology from Wiktionary, CC BY-SA 4.0.